The 37-year-old, who reportedly lives in a barge moored by Battersea Bridge. has skydived over Mount Everest and crossed the Sahara for the show; Born Survivor. It is known as Man v Wild in America.

His US-based publicist Heather Krug confirmed the separation.

“Bear’s goal has always been to make life-empowering shows for his many fans around the globe, and he has taken great risks to bring Discovery such award winning programming over seven seasons,” she said.

“Unfortunately, Bear and Discovery have not been able to come to mutual agreement on new programming, and he disagrees with Discovery’s decision to terminate current productions.

“Bear has loved the Man vs Wild journey and looks forward to producing further cutting-edge content again soon for his loyal audience.”

Grylls was the youngest Briton to climb Mount Everest when he was 23, and has presented television programmes including Escape To The Legion.

He spent three years in the military with the Special Air Service and became Chief Scout in 2009.

He tweeted fans thanks for their support, adding: “Do not go where the path may lead, go instead where there is no path and leave a trail.”

A spokeswoman for the channel said: “Due to a continuing contractual dispute with Bear Grylls, Discovery has terminated all current productions with him.”

Up at The O2 has teamed up with London24 to give one lucky reader the chance to experience urban mountaineering this summer with an exhilarating 90-minute climb across the roof of one of London’s most iconic landmarks.